diff mbox

[V2,2/2] pwm: bcm2835: Support for polarity setting via DT

Message ID 1502533184-15765-3-git-send-email-stefan.wahren@i2se.com (mailing list archive)
State New, archived
Headers show

Commit Message

Stefan Wahren Aug. 12, 2017, 10:19 a.m. UTC 
This adds support for the third (optional) pwm cell to specify the
polarity, which is needed by display backlights for example.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
 drivers/pwm/pwm-bcm2835.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index c5dbf16..db001cb 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -167,6 +167,8 @@  static int bcm2835_pwm_probe(struct platform_device *pdev)
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
 	pc->chip.npwm = 2;
+	pc->chip.of_xlate = of_pwm_xlate_with_flags;
+	pc->chip.of_pwm_n_cells = 3;
 
 	platform_set_drvdata(pdev, pc);